Block-planing machine



J. A. COURVILLE. BLOCK PLANING MACHINE. APPLICATION FILED JUNE 14. 1920.

1,407,382. Patented Feb. 21, 1922.

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mum /6 I J. A. COUBVILLE. BLOCK PLANING MACHINE. APPLICATION FILED JUNE 14, 1920.

1,407,382. Patented Feb. 21, 1922.

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4 SHEETS-SHEET 3- Patented Feb. 21, 1922.

1. A. COURVILLE. BLOCK PLANING MACHINE.

APPLICATION FILED JUNE 14, 1920- 1,407,382 Patented Feb. 21,1922.

4 SHEETS-SHEET 4- JOSEPH A. GOUBVILLE, OF MARLBORO, MASSACEIUSETTS.

BLOCK-PLANING MACHINE.

1&01382.

Specification of Letters Patent.

Patented Feb. 21, 19.22.

Application filedJune 14, 1920. Serial-N0. 388,890.

T 0 all whom it may concern Be it known that I, JosnrH A. COURVILLE, a citizen of the United States of America and resident of Marlboro, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Block-Planing Machines, of which the following is a specification.

This invention relates to planing machines and particularly to a mechanism intended for use in connect-ion with the trimming of blocks such as are employed in connection with reciprocating or other outters which penetrate the work or material to be cut and then imbed themselves in the upper surface of the block so that in time the block becomes mutilated and has to be refinished in order to make it possible to operate the cutters successfully.

This invention is, therefore, intended as a'transportable or demountable dressing device intended to be attached in such operative relation to the block as to make it pos sible to operate the cutter or dressing tool to remove the impaired surface of the block so that it may be cut down to the solid surface with which the cutting knives coact effectively.

It is an object of the invention to provide novel means whereby the dressing or planing machine, and hereafter in this specification the apparatus will be referred to as a planing machine, is attached to the block and held while the tool is being rotated or operated for performing the dressing operation, and in this connection, means are provided for clamping the frame of the planer against the sides of the block, or under certain conditions to support it by a hanger, as will presently appear.

A still further object of this invention is to provide a planer of the character indicated having a frame with guiding members ing the cutting tool whereby the motor is moved in conjunction with the cutting tool permitting a direct drive of the cutter from the motor, said motor being preferably of the electrical type.

With the foregoing and other objects in Vl QW, the invention consists .in the details or construction, and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, reference will be had to the accompanying drawings wherein like characters of reference indicate corresponding parts in the several views, and in which- Figure 1 illustrates a view in elevation of what might be termed one end of the planing machine;

Figure 2 illustrates a view in side elevation from a position at right angles to that of F 1g. 1;

Figure 3 illustrates a top plan view of the planing machine;

'Figure 4 illustrates a perspective view looking at the inner face of one of the frame standards;

Figure 5 illustrates a perspective View looklng at the inner face of the other frame standard;

Figure 6 illustrates a perspective view of a threaded member, one of which is employed in connection with each of the said frame standards;

Figure 7 illustrates a sectional view on the line 7-7 of Fig. 1;

Figure 8 illustrates a sectional view through the carriage for the cutter head;

Figure 9 illustrates a plan view of the carriage for the cutter head with the top plate removed;

- Figure 10 illustrates a perspective view of a support for the track of the cutter mechanism Figure 11 illustrates a perspective view of a modified form of device for attaching the planing machine to the block;

Figure 12 illustrates a perspective view of the other block for supporting the track of the motor carriage, and

Figure 13 illustrates a perspective view of the bracket for connecting the motor to the carriage.

In these drawings 15-15 denote sills and 16- 16 slotted connecting bars at the ends of the sills, the connecting bars being rigidly attached to a sill at one end by fastenings such as and having slots 15 at their opposite ends whereby one sill may be adjustable with relation to the other to change the width of the frame consisting of the sills and the connecting bars. The sills have approximately L-shaped brackets 17 connected to them by fastenings 18 such as screws, and the foot or angular portion 19 of each bracket has a series of clamping or set screws 20 threaded through them and adapted to coact with the bottom of the sill to hold or bind against a member carried by the block adapted to receive or engage these fastenings. In blocks now in common use, there is a depending flange at the edge or margin of the block and it is the purpose of this invention to have the angular portions of the brackets fit under the edge of the flange and to have the screws 20 threaded through the bracket so as to prevent dislodgement of the frame'from the block. Under certain conditions of use, where the block is not provided with a flange, or if the block is too high for the brackets or fastenings 17, a hanger 21 may be employed, one at each end of the sills, the said hanger having apertures 22 which are intended to receive the fastenings by which the bars 16 are connected to the sills. In this use of the connecting device, the bars, of course, would be temporarily removed and the hangers would operate as a rigid connection between the sills. These sills constitute guides in that they preferably have channels 23 in their upper faces in which ribs 24, the counterpart of the slots, may slide. A conventional showing of the shape of the slot and rib is made in this case, but it is to be understood that any sliding or slidable connection may be employed to permit the carriage to move longitudinally of the sills.

The main carriage in the present embodiment of the invention comprises what may be calledstandards or heads 25 and 26 which are practically the same in structure, although they differ slightly, as will presently appear. Each of the standards has a rib 24 and a seat 27 for the threaded sleeve 28 which sleeve may be secured to the standard by fastenings such as a bolt 29 which enter the apertures 30 and 31 in the standard and sleeve respectively, so that by means of a worm or screw 32 threaded in the sleeve 28 rotatable in journal bearings 33, carried by the bars 16, the stlalndard are moved longitudinally of the s1 s.

The standards have guides 34 preferably of the dovetail type with relation to which the blocks 35 are slidable so that said blocks move vertically, and each of the blocks has recesses 36 in it ends adapted as seats for the rails 37 and 38 which extend practically in the space between the sills, and each of these blocks has a nut 39 with a shank 4O threaded in it and the nut 39 of each block projects into a recess o1'groove such as 41 formed in the inner face of each standard so that the nut may slide up and down in the said recess as the block slides up and down on the guide 34. A screw 42 is rotatably mounted in an aperture 43 of each standard and it engages the threads of the nut 39 so that when the screws are turned, the block are moved up and down to effect thefeeding of the cutter, as will presently appear.

The carriage for the cutter mechanism comprises a body 44 having slots 45 in its sides adapted to receive the rails 37 and 38, and the said block has an apertured lug 46 threaded to receive a screw 47 by which the carriage is moved longitudinally of the rails 37 and 38 so that by the rotation of the screw 47 the carriage is moved across the block in one direction and by the rotation of the screws 32, the carriage is moved across the block in the other direction; so that by the combined movement of these elements, every portion of the surface of the block can be reached by the dressing tool.

The screws 32 are moved in unison by means of a shaft 48 journaled in the standards, the said shaft having beveled gears '49 meshing with the beveled gear wheels 50 which latter are on vertically disposed shafts 51.journaled in brackets such as 52 carried by the standards, it being understood that the worms or screws 32 have beveled gear wheels 53 meshing with the ear wheels 54 on the vertically disposed siafts, so that when the vertically disposed shafts 51 are rotated under the influence of the shaft 48, the carriage will be moved longitudinally of the sills. Handles such as 55 may be employed for rotating the shaft 48 and aha-ndle 56 may be employed for rotating the screw 47.

The cutter is driven by a motor 57 sup ported by a bracket 58 attached to and carried by the body 44 through the plate 44, and the said body has a'shaft 59 extending through an aperture 60, which shaft isjournaled in the body. The shaft 59 has a gear wheel 61 secured on it, and the said gear wheel 61 is driven by apinion 62 on the drive shaft 63 of the motor 57,'it being understood as stated, that the motor is electrically driven, and therefore, the shaft 59 will be likewise driven. V

I have shown anti-friction devices such as ball bearings 64 associated with the body and the rotatable shaft 59, and it is believed that the construction and arrangement of parts shown will be found efficient and satisfactory.

The body 44 has a recessed lower face shown at 65, and this is intended as a seat for the cutter head 66 which, in the present embodiment of the invention, comprises a disk having a depending flange in its periphery, the said flange having cutting blades or teeth '67 integral therewith and spaced apart according tothe requirements of practice,preferablyto such an extent as to make themaccessible for treatment in sharpening them. The cutter head or the disk thereof, has an aperture 68 which fits on the shaft 59, and it is secured thereon by a fastening 69, such as a key, and is further held in place by a plate 70 bearing against-the disk and held thereon by a screw 71 threaded in the end of the shaft.

From the foregoing description and from an inspection of the drawing, it: will be apparent that when the frame is applied to a block in the manner stated, the motor may be driven to operate the dressing tool, and by manipulating the screws 42, the position of the teeth 67 with relation to the surface of the block, may be regulated to use a shallow or deep dressing, as the condition of the work requires, and that the dressing tool may then be moved longitudinally or transversely to a very limited degree of adjustment or to a very marked degree of adjustment, according to the requirements of the work, and that the operator may, by operating the handles 55 and 56, cause the dressing tool to operate in conjunction with any part of the surface covered by the frame.

In affording an adjustment for the sills with relation to each other, the rails 37 and 88 may be released from the block 35, and these rails: may move with relation to the said block; and to permit the movement of the rails, the standard 26 has recesses A cut in its edges to produce clearances to permit the rails to slide past the said standards, it being understood, of course, that when the rails have been re-adjusted, they will be again secured in place. Screws-B are threaded in apertures C of the blocks and are intended to bear against the rails to hold them in different positions of adjustment.

I claim:

.1. In a planing machine, a frame comprising sills and connecting bars for the sills adjustably held whereby the sills are movable with relation to each other, a standard slidable on each sill, said standard having dovetail guides with recessed faces, blocks slidable on the said guides and having nuts on their inner faces movable in the recesses of the standards, screws rotatably mounted in the standards and extending through the recesses thereof in engagement with the nuts of the blocks whereby the blocks are moved vertically, rails connected to the said blocks, body slidable on the said rails, means for moving the said body on the said rails, means for moving the standards longitudinally of the sills, a shaft rotatably mounted vertically in the body, a motor driven means for rotating the shaft, and a cutter head carried by the lower end of the said shaft.

2. In a planing machine, a frame including sills, standards slidably mounted on the sills, said standards having guiding ribs on their inner faces with recesses extending vertically therein, blocks slidable on the said rlbs and having nuts extending into the recesses of the standards, screws rotatably mounted in the standards and threaded in the. nuts of the blocks, said blocks having recesses in their ends, rails seated in the recesses, means for adjustably securing the said rails in the recesses, means for adjust ing the frame whereby the rails move in the recesses of the blocks, one of the said standards being reduced in width to create a clearance for the movement of the rails, a body slidable on the-rails, a motor mounted on the body, a shaft j ournaled vertically in the body, means of communicating the motion of the motor to the said shaft, a cutter head on the shaft, means for moving the body longitudinally of the rails, and means for moving the standards longitudinally of the sills.

8. In a block planing machine, a frame comprising sills and connecting bars for the sills adjustably connected together whereby the sills are movable with relation to each other, a standard slidable on each sill, a block vertically slidable on each standard, each of said blocks having a threaded portion, screws rotatably mounted in the standards and engaging the threads of the blocks, whereby the blocks are moved vertically, rails connected to the said blocks, a body slidable on the said rails, means for moving the said body on the said rails, means for moving the standards longitudinally of the sills, a shaft rotatably mounted vertically in the body, a motor driven means for rotating the shaft, and a cutter head carried by the lower end of the said shaft.

i. In a planing machine comprising sills, L-shaped clamping members secured to the sills and extending th erebelow, screws threaded in the angularly disposed portion of the clamping members, standards slidable longitudinally of the sills, slotted bars connect ing the said sills and adjustably connected the motion of the motor to the said cutter, means for moving the body longitudinally of the track of the rails, and means for mov ing the standards longitudinally of the sills.

5. In a-planing machine. a frame comprising sills and connecting bars for the sills, a

, the blocks are moved vertically, rails connected to the said blocks for adjustment longitudinally of the-rails, a body slidable on the rails, means for moving the said body on the said rails, means for moving the standards longitudinally of the sills, a shaft rotatably mounted vertically in the body, a motor driven means for rotating the shaft,

andaa cutter head carried by the lower end of the said shaft.

6. In a planing machine, a frame comprising sills and connecting bars for the sills adjustably held whereby the sills are movable with relation to each other, a standard slidable on, each sill, blocksverticallyslidable on the said standards, each of said blocks having threaded portions; screws ro-' tatably mounted in thestandards 'and engaging the threads'of the blocks whereby the blocks are moved vertically, rails adjustably connected to the said blocks for adjustment longitudinally of the rails, a

body slidable on the rails, means for movmg the said body on the sald ra-11s, means for moving the standards longitudinally of the sills, a vshaft rotatably mounted vertically in the body, a motor-driven means for rotating the shaft, and a cutter head carried by the lower end of the said shaft.

. JOSEPH A. COURVILLE. j 

